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ClinicalTrials.gov public records Last synced Oct 24, 2026, 4:55 AM EDT

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Showing 1–24 of 199 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: ASA placebo Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

The Effects of Aspirin and Acetaminophen on the Stomach in Healthy Volunteers

NCT00594867
View directory record Official record
Conditions
Healthy
Interventions
Acetaminophen - 4 grams per day + Placebo, Aspirin - 325 mg per day + Placebo, Acetaminophen 4 gram per day + Aspirin 325 mg per day
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 3 Interventional

Evaluate Analgesic Efficacy of Fast Release Aspirin

NCT01117636
View directory record Official record
Conditions
Drugs, Investigational
Interventions
Acetylsalicylic acid (Fast release Aspirin, BAY1019036), Acetylsalicylic Acid (Aspirin, BAYE4465), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
16 Years to 45 Years
Enrollment
514 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
2
States / cities
Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of ASA on Prostate Tissue

NCT00234299
View directory record Official record
Conditions
Prostate Cancer
Interventions
Aspirin, Placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
45 Years to 74 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 4 Interventional Results available

Prochlorperazine Versus Acetaminophen, Aspirin, and Caffeine for the Treatment of Acute Migraine

NCT01629329
View directory record Official record
Conditions
Migraine Headaches
Interventions
Aspirin, Acetaminophen, Caffeine pills, Prochlorperazine 10mg
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years to 65 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 2 Interventional Results available

Esomeprazole Magnesium With or Without Aspirin in Preventing Esophageal Cancer in Patients With Barrett Esophagus

NCT00474903
View directory record Official record
Conditions
Barrett Esophagus, Esophageal Cancer
Interventions
acetylsalicylic acid, esomeprazole magnesium, placebo
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2014 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 3 Interventional Results available

Dabigatran Etexilate for Secondary Stroke Prevention in Patients With Embolic Stroke of Undetermined Source (RE-SPECT ESUS)

NCT02239120
View directory record Official record
Conditions
Stroke, Secondary Prevention
Interventions
optional ASA as comedication, placebo to ASA, placebo to optional ASA as comedication, placebo to dabigatran etexilate, ASA 100 mg, dabigatran etexilate
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 150 Years
Enrollment
5,390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
110
States / cities
Phoenix, Arizona • Beverly Hills, California • El Cajon, California + 94 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2019 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Randomized Phase 1 Dose-Escalation Study of Subcutaneously(SC) Administered RUC-4

NCT03844191
View directory record Official record
Conditions
Coronary Disease
Interventions
RUC-4 Compound
Drug
Lead sponsor
CeleCor Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Aleglitazar in Combination With Aspirin in Healthy Volunteers

NCT01188304
View directory record Official record
Conditions
Healthy Volunteer
Interventions
aleglitazar, aspirin, placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
40 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 1 Interventional

Alleviation of Common Cold Symptoms

NCT06106880
View directory record Official record
Conditions
Common Cold, Pharyngitis, Fever, Congestion, Rhinorrhea, Cough, Sore-throat, Sore Throats Viral, Malaise, Headache, Runny Nose, Sneezing
Interventions
Wintergreen Throat Spray and Aspirin Tablet, Aspirin Throat Spray and Placebo Tablet, Wintergreen Throat Spray and Placebo Tablet, Placebo Throat Spray and Placebo Tablet
Drug · Dietary Supplement · Other
Lead sponsor
Applied Biological Laboratories Inc
Other
Eligibility
18 Years to 65 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
6
States / cities
Irvine, California • Washington D.C., District of Columbia • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2024 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PACT (Platelet Activity After Clopidogrel Termination)

NCT00619073
View directory record Official record
Conditions
Blood Platelets, Clopidogrel
Interventions
clopidogrel + aspirin, placebo, Aspirin
Drug
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Randomized Controlled Trial of Aspirin vs Placebo in the Treatment of Pre-psychosis

NCT02047539
View directory record Official record
Conditions
Clinical High Risk for Psychosis
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
19 Years to 35 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 4 Interventional Results available

Ticagrelor With Aspirin or Alone in High-Risk Patients After Coronary Intervention

NCT02270242
View directory record Official record
Conditions
Cardiovascular Disease, Interventional Cardiology
Interventions
Aspirin, Placebo, ticagrelor
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
9,006 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2021 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Aspirin and Plavix Following Coronary Artery Bypass Grafting

NCT01158703
View directory record Official record
Conditions
Coronary Graft Patency
Interventions
clopidogrel, sugar pill, Aspirin
Drug
Lead sponsor
Ahmad Slim
Federal
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2015 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 2 Interventional Results available

High Dose Oral 4-Aminosalicylic Acid (PASER®) to Control Acute Flares of Mild to Moderate Crohn's Disease in Children

NCT00495521
View directory record Official record
Conditions
Crohn's Disease
Interventions
4-Aminosalicylic acid extended release granules
Drug
Lead sponsor
Jacobus Pharmaceutical
Industry
Eligibility
2 Years to 18 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
5
States / cities
Los Angeles, California • San Francisco, California • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2017 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 2 Interventional

Comparison of Sulindac, Aspirin, and Ursodiol in Preventing Colorectal Cancer

NCT00062023
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Acetylsalicylic acid (Aspirin), Sulindac, Ursodiol, Sulindac Placebo
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
40 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 30, 2012 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 4 Interventional Results available

A Study of Apixaban in Patients With Atrial Fibrillation, Not Caused by a Heart Valve Problem, Who Are at Risk for Thrombosis (Blood Clots) Due to Having Had a Recent Coronary Event, Such as a Heart Attack or a Procedure to Open the Vessels of the Heart

NCT02415400
View directory record Official record
Conditions
Acute Coronary Syndromes
Interventions
Apixaban, vitamin K antagonist, Acetylsalicylic acid, Acetylsalicylic acid placebo
Drug · Other
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 95 Years
Enrollment
4,614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
143
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 125 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 2 Interventional Results available

A Study of the Onset and Offset of Antiplatelet Effects Comparing Ticagrelor, Clopidogrel, and Placebo With Aspirin

NCT00528411
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Ticagrelor Tablets, Clopidogrel (over encapsulated) capsule, Aspirin Tablets
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
8
States / cities
Baton Rouge, Louisiana • Baltimore, Maryland • Towson, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2012 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 2 Interventional Results available

Modulation of Immune Activation by Aspirin

NCT02155985
View directory record Official record
Conditions
HIV-1 Infection
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Network
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
15
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2017 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Safety and PK of Multiple Doses of LT3001 Drug Product and Drug-drug Interaction in Healthy Subjects

NCT04809818
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
LT3001 drug product, Placebo, Aspirin, Clopidogrel, Apixaban, Dabigatran
Drug
Lead sponsor
Lumosa Therapeutics Co., Ltd.
Industry
Eligibility
18 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 2 Interventional

Aspirin as an Ultraviolet (UV) Protectant in Human Subjects at Risk for Melanoma

NCT04066725
View directory record Official record
Conditions
Melanoma (Skin)
Interventions
Aspirin 81 mg, Aspirin 325mg, Placebo oral tablet
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 18, 2022 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 2 Interventional Results available

Acetylsalicylic Acid Compared to Placebo in Treating High-Risk Patients With Subsolid Lung Nodules

NCT02169271
View directory record Official record
Conditions
Current Smoker, Former Smoker, Multiple Pulmonary Nodules, Tobacco Use Disorder
Interventions
Aspirin, Laboratory Biomarker Analysis, Placebo
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
50 Years and older
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2020 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 2 Interventional Results available

Walking Effect of Long Term Ticagrelor in Subjects With PAD Who Have Undergone EVR

NCT02227368
View directory record Official record
Conditions
Peripheral Artery Disease (PAD)
Interventions
Ticagrelor, Comparator
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
50 Years to 130 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
10
States / cities
Daytona Beach, Florida • Jacksonville, Florida • Ocala, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2017 · Synced Oct 24, 2026, 4:55 AM EDT
Terminated Phase 2 Interventional Results available

Aspirin to Prevent Preeclampsia in Women With Elevated Blood Pressure and Stage 1 Hypertension (ASPPIRE)

NCT04402385
View directory record Official record
Conditions
Pre-Eclampsia, Stage 1 Hypertension, Elevated Blood Pressure
Interventions
Aspirin 81 mg, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Oct 24, 2026, 4:55 AM EDT
Completed Phase 3 Interventional Results available

Randomized Placebo-Controlled Trial of Budesonide Multi-Matrix System (MMX®) 9 Milligrams (mg) in Participants With Ulcerative Colitis Currently on a 5-Aminosalicylic Acid (5-ASA)

NCT01532648
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Budesonide MMX®, Placebo, 5-ASA
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
39
States / cities
Anaheim, California • Lakewood, California • San Diego, California + 36 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2019 · Synced Oct 24, 2026, 4:55 AM EDT